diff options
| author | Niall Douglas (s [underscore] sourceforge {at} nedprod [dot] com) <spamtrap@nedprod.com> | 2017-08-16 05:14:39 +0300 |
|---|---|---|
| committer | Niall Douglas (s [underscore] sourceforge {at} nedprod [dot] com) <spamtrap@nedprod.com> | 2017-08-16 05:14:39 +0300 |
| commit | 17983cd690ba9ff222926af5849abb665d13ac23 (patch) | |
| tree | 492fa5434974761bcbeab8c4afdb533326b4bb42 /release_notes.md | |
| parent | dfc571c48eb92720b5c45a3662a655093839e5aa (diff) | |
KernelTest now requires C++ 17 for its aggregate tuple, so made only the tests link to it not the rest of AFIO. That means AFIO's tests now compile under C++17 instead of C++ 14.
directory_handle, apart from enumeration, now has a test suite and is working on Windows and POSIX.
Diffstat (limited to 'release_notes.md')
| -rw-r--r-- | release_notes.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/release_notes.md b/release_notes.md index 44219cc1..3febb0fb 100644 --- a/release_notes.md +++ b/release_notes.md @@ -19,7 +19,7 @@ source code repository lives at https://github.com/ned14/boost.afio. <th colspan="3">Why you might need AFIO<hr></th> </tr> <tr> -<td valign="top"> +<td valign="top" width="33%"> Manufacturer claimed 4Kb transfer latencies for the physical hardware: - Spinning rust hard drive latency @ QD1: **7000us** - SATA flash drive latency @ QD1: **800us** @@ -29,7 +29,7 @@ Manufacturer claimed 4Kb transfer latencies for the physical hardware: - `memcpy(4Kb)` latency: **5us** (main memory) to **1.3us** (L3 cache) - RTT PCIe latency: **0.5us** </td> -<td valign="top"> +<td valign="top" width="33%"> 100% read QD1 4Kb transfer latencies for the software with AFIO: - Average spinning rust hard drive latency: **TODO** - 99.999% spinning rust hard drive latency: **TODO** @@ -38,9 +38,9 @@ Manufacturer claimed 4Kb transfer latencies for the physical hardware: - Average NVMe flash drive latency: **98.9us** (10,111 IOPS) - 99.999% NVMe flash drive latency: **3,146us** (317 IOPS) -Lowest sustained 4Kb read latency benchmarked to date by author (NVMe): **992ns** (1M IOPS, 3.8Gb/sec) +Lowest sustained 4Kb read latency benchmarked to date by author (NVMe): **992ns** (1M IOPS, 3.8Gb/sec, x4 PCIe 3.0 interface maxed out) </td> -<td valign="top"> +<td valign="top" width="33%"> 75% read 25% write QD4 4Kb transfer latencies for the software with AFIO: - Average spinning rust hard drive latency: **TODO** - 99.999% spinning rust hard drive latency: **TODO** @@ -49,7 +49,7 @@ Lowest sustained 4Kb read latency benchmarked to date by author (NVMe): **992ns* - Average NVMe flash drive latency: **26.9us** (37,105 IOPS) - 99.999% NVMe flash drive latency: **21,597us** (46 IOPS) -Lowest sustained 4Kb write latency benchmarked to date by author (NVMe): **992ns** (1M IOPS, 3.8Gb/sec) +Lowest sustained 4Kb write latency benchmarked to date by author (NVMe): **992ns** (1M IOPS, 3.8Gb/sec, x4 PCIe 3.0 interface maxed out) </td> </tr> </table> |